Digital Rights Management

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Digital Rights Management (DRM) describes a range of technologies which allow control of distribution and access to digital information, typically - but not restricted to - mass-media content (e.g. books, music, movies), software or data files (e.g. documents, spreadsheets, databases).

Control may be applied for purposes including copyright or intellectual property protection, commercial, industrial or military confidentiality, regulatory privacy and regulatory compliance, amongst other functions. In the latter cases digital rights management solutions typically ensure that duplicate files cannot exits. This ensures that audited documents remain traceable, that the originators of any and all changes can be traced and recorded and that duplicates (or excerpts) do not exist when confidential files are deleted.

Digital Rights Management solutions typically consist of technical protection measures and some type of rights database that determines correct policy or usage for each file and each user. The technical protection system typically comprises a cryptographic layer and a copy protection layer.

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